变变

All real simple Malcev algebra,are classified according to whether or not they have a compatible complex structure and simultaneously we give all the invariant bilinear forms by the killing form of the real simple Malcev algebra or the killing form of it s complexification .

研究实单Malcev代数上的不变双线性型，仿照李代数的情形给出实Malcev代数上的容许复结构、实Malcev代数的复化以及Malcev代数上的不变双线性型等概念，并通过对实单Malcev代数上容许复结构的讨论，将实单Malcev代数上的不变双线性型分为两种情形。

We also analyze the mechanism of the initial zinc blende structure and wurtzite structure phase transition in II-VI and III-V compound materials. The results indicate that the transition of zinc blende structure to rocksalt structure due to "chair" structure transform, the transition of wurtzite structure to rocksalt structure due to "chair" and "boat" structure transform.

对II-VI族和III-V族初始相为闪锌矿或纤锌矿的压致结构相变机制进行的分析表明，闪锌矿结构到岩盐矿的相变是因为"椅式"结构的变化，纤锌矿结构到岩盐矿的相变是因为"椅式"和"船形"两种结构的变化。

The creep properties of Tianjin Harbor Breakwater are analyzed by the calculation result of the model, and accordingly, some relevant predictions of the future creep tendency and phenomena can be made.

利用模型的计算结果分析天津港突堤的蠕变特性，并对其未来的蠕变情况和蠕变趋势做出相应的预测。

RESULTS The blood biochemistry index of the huanghankang treated group is much lower than others; The RPE thickness of the three groups has no difference; Compare to the positive control group, the Bruch membrane thickness of the huanghankang treated group is thinner.

结果 黄斑康治疗组血脂、血液流变学、丙二醛（maleic dialdehyde，MDA）指标明显低于阳性药物对照组和阴性对照组；黄斑康治疗组与阴性对照组、阳性药物对照组比较，色素上皮（retinal pigment epithelium，RPE）厚度无明显差异；黄斑康治疗组与阳性药物对照组比较，玻璃膜厚度变薄；黄斑康治疗组与阴性对照组比较，玻璃膜厚度变薄。

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公司主要从事开发、制造、销售仪器仪表、仪表管阀件、电线电缆、电缆桥架、和光纤光缆等产品，经过多年的产品结构调整，已形成仪表包括热电阻、热电偶、双金属温度计、温度变送器、压力表、压力变送器、液位计、液位变送器、仪表管阀件、温度、压力、流量、液位现场总线等系列仪器仪表产品；电线电缆包括电力电缆、高温硅橡胶电缆、变频电缆、控制电缆、计算机电缆、交联电力电缆、钢芯铝绞线、阻燃电缆、伴热电缆、铁路信号电缆、防火电缆、船用电缆、补偿导线、补偿电缆、电缆桥架等系列电线电缆产品；通信光缆包括中心束管光缆、层绞式光缆、带状光缆、ADSS光缆及其配线系列产品；企业连续多年被评为"省级重合同守信用先进企业"、"省级依法纳税先进企业"、"银行资信AAA级企业"、"省级高新技术企业"、"中国电子百强企业"、"全国温度仪表协会理事"、"国家电缆免检产品"等荣誉称号。

This method can be used to determine the rheological parameter in Casson model of drilling fluid, optimize rheological model, adjust and evaluate the performance of drilling fluid.

该方法可以应用到钻井液卡森流变模式流变参数的确定、钻井液流变模式优选及钻井液性能调整和评价等方面。

Self-tuning controller in practice the widespread use of its increasingly obvious shortcomings, mainly reflected in the change of Order, Variable Delay and change parameters in the system, developed with the robustness of the controller in actual application is very useful.

由于自校正控制器在实际中的广泛运用，其缺点日益明显，主要体现在变阶次、变时延和变参数的系统中，因此研制具有较强的鲁棒性的控制器在实际运用中非常有用。

According to Liu Xie , there is unchangeableness in changes of literary forms or there are changes in unchangeableness . Such a structural theory inspires us to combine structuralist explorations of universality with post - structuralist explorations of changeableness , which may be a scientific and effective approach .

刘勰关于文学形式交中有不变或者说不变中有交的"通变"结构理论给人们启示了一条将结构主义对普遍性的探讨与后结构主义对变异性的探讨融为一体的独特的研究之途，不失为一条科学有效的研究路径。

The models have been applied to an investigation on the chatter in a type Mx-4 lathe. An in-depth study has been made on the AR spectrum, the chatter modal damping ratio and the characteristic root of a time-varying system.

文中对时变金属切削过程颤振的AR谱特性、颤振模态的阻尼率、时变系统的特征根这三个方面都进行了深入的研究，指出了时变金属切削过程颤振的特点，提出了颤振状态下的机床切削系统仍然是稳定系统的观点。

The results showed that the coating rate increased with increasing reation temperature and SnCl_4 flux,but the coating morphology got worse with the gas viscosity increasing,the coati...

结果表明，反应温度和SnCl＿4浓度升高，包敷速率加快，包敷形态变差；背景气氛粘度增大，包敷形态变优，包敷速率减小；操作气速增大，包敷速率加快，包敷形态变优。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。